Dash Speaker Mounting adapters - 986 Forum - The Community for Porsche Boxster & Cayman Owners

If you are looking to upgrade your dash speakers and do not want to destroy the factory speakers, I made an adapter plate so you can mount 4" speakers I went with Infinity 4002cfx speakers as they are some of the most efficient speakers available and when I listened to them they sounded better (to me) than other speakers The adapter plate should work with just about any 4" speaker,. Just be careful on the depth as on the right speaker, there is a bolt that sticks up and it will limit the depth available for a speaker I also purchased from crutchfield speaker cabling adapters as I wanted to leave the speaker harness intact Metra 71-017C Speaker Wiring Harnesses For select 1989-09 vehicles at Crutchfield.com Here is a link for my adapter template https://www.dropbox.com/s/jo4xvwi87e2sep3/986%20dash%20speaker%20adapter%20plate.pdf I made the adapter out of 3/16" lexan. You will need to grind t a little to fit after you cut it out. I used a rotozip to cut out the adapter. The left and right are mirror images of each other. I also ground down the back side where the 2 mounting holes area little. It will make sense when you put it together I used some 1/4" flat washers to act as spacers over the mounting studs on the speaker cover and also some #6 washers for the screws You can see them in the pics below I used silicon caulk to attach the speakers to the plates The speaker mounting tabs will need to be removed with a grinder or dremel. I put the speakers in a baggie and poked the tabs through so the little metal bits from grinding would not get into the speakers mounting plates front and back of mounted speaker attached with wiring

Very nice of you Dwight

nice job on the plates, but when I removed my stock speakers, they were already destroyed. I just used a coping saw to cut everything away except where the plug was and slid in the new speakers soldering them to the existing connectors. having used the 4" polk speakers, I used my belt sander to grind off the mounting ears and they dropped right into place.

Brilliant Now We Can Dance!!! Just the inspiration I needed to get me changing my sad & stock speakers. Thanks for the template mate

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Thanks My factory speakers were in perfect condition, so I figured I would keep them intact in case I ever wanted to go back to factory , or if someone needed a set I would sell them Had they been trashed, I would have used them as the new speaker mount. I had looked for some pre-made adapters, but the links I found were all dead. So what you can't buy, you have to make

Has anyone else had a problem sourcing the Metra 71-017c harness adapter? I wanted to order them, but seems like Crutchfield is the only company that I can find it at. Wanted to try to install this weekend, but seems like its not going to happen if I can't find the harnesses. Thx all in advance,

Excellent. Wish I had seen this before I did all of my gyrations. I did manage to swap all4 speakers (2 door, 2 dash) and it is tremendously better. But this is very elegant, cleaner and simpler than what I did. Live and learn. I do want rear speakers and am looking forward to seeing that plan.

My mount test was somewhat successful, if it was not for my lack of patience. They ended up making the speakers too deep to install. Since the oem speakers ended up being toast, I went ahead and cannibalized the mounts. Install went very well, may have to pull them again to square away the connection to the oem connector, it may need some attention. I have the "ready to print" mount 3d template if anyone has access to a 3d printer. My local library has one, but unfortunately, the "plate" is too small to fit, so it would not work. Stinks, as the charge for the smaller one they made me was fifty cents! Next up... rear speakers: Speakers mounts have been made (out of plastic), fitted, and painted and installed in tray Speakers in mounts, wiring of speakers is done Speaker grills have been made (thanks IKEA trash can), painted and fitted, hopefully installing today Left to do: Run 4pair speaker wire to radio (will most likely run it under center console) Connect wire to radio connector (not running it to amp, since I only have a 4 channel amp) Drop in the tray and speakers. BTW, I used a MOLEX 4 pin connector as my "quick connect/disconnect" from harness to speaker tray, hope that works ok. Last weekend's work: Dash speaker upgrade Work on rear speakers (mounts/etc) Wiper Blades LED door courtesy lamps and dome lamp (white) Clear side markers Frunk hood shocks Install working 3 stalk turn signal adapter Install new power mirror switch led's in 3rd brake light (redoing it, lamps did not fit very well) Washed top of engine compartment Air filter Cabin filter (there must have been a family living in all the stuff I took out of there!) A/C LCD fix (thanks 914 rubber).. took me 1/2 hour tip to tail, and had to do it twice as I initially put the LCD screen in upside-down! New fog lamp bulbs (one was out) To do next weekend: Oil/filter change, install mag drain plug (I hope I can fit myself under car!) Don't have a flat jack, just a bottle jack and stands!) Serpentine belt change, front of engine clean (if needed) Inspect alt/water pump, etc.. Finish off rear speaker install My only ?? right now is that my power mirrors are still not working (I replaced the switch). Anyone have a wiring diagram of the switch/harness so I can at least see if I am getting power in there? (I know enough of a multimeter to be dangerous!). Neither of them work, appears to be OK otherwise. DRIVE!! Thanks to my wife for hanging out w/me and working on detailing interior while I work on car. 2002 Artic Silver, 70k miles.

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I'd be interested in the 3d blueprints! I gutted an extra pair of dash speaker mounts but I'd prefer a cleaner looking install.

I sent the files to square-root Install finished, hopefully I can post the pics this weekend Great improvement, will probably get some Better repeaters within the next couple of months, these were dirt cheap

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I would also be interested in the 3D drawings. I have access to a 3D printer. Thanks Mark

Have you thought about making a solution that would hold a replacement tweeter so you can use components? I just upgraded or upgrading to Hertz 3 way components and the tweeter mounting became a headache. Came up with a in-elegant solution of making a couple of small holes and a small zip tie as a strap and some electrical tape. Its working but I am still wanting to come up with a more elegant solution.

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Stiglitz Would you mind sending the drawings again? They were in my messages but when I logged in again they were gone Thanks

Sent! via pm

I just installed a set of alpine Spg102C and used my factory rings which I modified but can still go back to the originals if I want. Hot glued them to the rings haven't had any issues. Even used the original harness. Mine had the component tweeter in the grills but deleted them since the alpines where coaxial 2 way speakers. These grills are from a 2002 base model. The 4inch alpines are a major difference from the original paper weights...