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YOUR RESEARCHAmplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Replace crossover setup
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Performed · outcome unconfirmed · Original poster
I eventually changed my crossover setup which forced me to run all new RCA adn speaker wires, so I'm not using these adapters anymore.
Amplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace crossover setup' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace crossover setup' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed · Original poster
I used these adapters with the factory Becker CDR-220, Alpine F-450 amp, and Dynaudio System 340 speakers and crossovers with excellent results.
Amplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace factory haes 6x40 dsp amplifier
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
I made these amplifier connector adapters as part of my stereo upgrade, so I could replace my factory Haes 6x40 DSP amplifier with a good aftermarket unit without cutting or splicing into the factory harness where it connects to the factory amp.
Amplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Run rca adn speaker wires
Suggestion or failed attempt
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
I eventually changed my crossover setup which forced me to run all new RCA adn speaker wires, so I'm not using these adapters anymore.
Amplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Test on my car
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion · Original poster
I only tested on my car, but as far as I can tell from the schematics, this should work fine with other non-M680 versions.
Amplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace factory haes 6x40 dsp amplifier
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I made these amplifier connector adapters as part of my stereo upgrade, so I could replace my factory Haes 6x40 DSP amplifier with a good aftermarket unit without cutting or splicing into the factory harness where it connects to the factory amp.
Amplifier harness adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 1 discussions
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Generation: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello. I made these amplifier connector adapters as part of my stereo upgrade, so I could replace my factory Haes 6x40 DSP amplifier with a good aftermarket unit without cutting or splicing into the factory harness where it connects to the factory amp.
I made the adapters using the factory AMP connectors from a donor Haes amp. The adapters connect to the factory harness connectors using the factory retention mechanisms.
There are two connectors on the factory harness. The input connector carries the line level signals from the radio and DSP control signals from the DSP controller to the amp. The output connector carries the amplified output from the amp to the speakers. I made an adapter for each.
The "input" adapter plugs into the 18-pin factory harness connector and terminates into standard front and rear female RCA connectors. A 16 gauge amplifier turn on wire is terminated with a 1/4inch female spade connector. All other pins (useless DSP) are present but not connected. All pins are encased in silicon for strength.
Input adapter pinout (looking at the silicon end of the connector):
The pinout agrees with the amp schematics available elsewhere on the forum.
1-----------------9
| o o o o o o o o o |
| o o o o o o o o o |
10----------------18
2 RR-
3 RL-
4 FR-
5 FL-
7 12V switched (amp turn on)
10 RR+
11 RL+
12 FR+
13 FL+
The "output" adapter plugs into the 20-pin factory harness connector and terminates into 6 pairs of 14 gauge speaker wire with male 1/4inch spade connectors. The 12V main power and ground pins are present but not connected since they are not suitable for aftermarket amp use. All solder joints are wrapped in heat shrink tubing. The plug had small "keys" which mate to the factory harness surface. The keys were shaved to allow the adapter to work with different harnesses (M680, etc).
Output adapter pinout (looking at the heatshrink end of the connector):
The pinout agrees with the amp schematics available elsewhere on the forum. Also, the pin numbers are molded into the connector.
--11------------------20
| .o o o o o o o o o o |
| o o o o o o o o o o. |
1 ------------------10-
+,-
------
10,20 left dash
9,19 right dash
18,8 left door
17,7 right door
6,16 left rear
5,15 right rear
After upgrading my speakers, I pulled the factory amp, plugged in these adapters and connected my Alpine amp via ordinary RCA cables and an amp turn on wire. I connected the Alpine's outputs to the output harness with additional 14 gauge speaker wires. Presto.
I have a 2000 Boxster S with the DSP package (M680). I used these adapters with the factory Becker CDR-220, Alpine F-450 amp, and Dynaudio System 340 speakers and crossovers with excellent results. I only tested on my car, but as far as I can tell from the schematics, this should work fine with other non-M680 versions.
I eventually changed my crossover setup which forced me to run all new RCA adn speaker wires, so I'm not using these adapters anymore. I might sell them to recover my cost. PM me if you're interested.
