Hi Prime,
Would love if someone smarter/better with electrics than me would take a look at the below and let me know whether you think I'm crazy, or if it sounds like a good and cheap fix. If this works and doesn't burn my car down, I'd be happy to do a write-up on it for others in similar situations.
Background:
Plan:
I *think* this makes sense as long as I can figure out a mounting point for the control unit after the wiring is done, but would greatly appreciate input from someone with more expertise on whether or not I'll short something and flambe my console/entire car. I don't think this setup would run the risk of causing electrical problems, but that's based on the assumption that there isn't much/any risk of swapping out the old recipient of the 12v power line (the stock, dying head unit) with a new recipient (the BT receiver and control dongle), since I'm replacing rather than adding.
Thanks in advance!
Would love if someone smarter/better with electrics than me would take a look at the below and let me know whether you think I'm crazy, or if it sounds like a good and cheap fix. If this works and doesn't burn my car down, I'd be happy to do a write-up on it for others in similar situations.
Background:
- Failed head unit (assumed based on symptoms).
- Distorted audio, gets somewhat better after driving with static-y radio/music for a bit. Still gets power/turns on/etc. and can change channels or sources.
- Amps already rebuilt by BrianK Circa 2006, no reason to think these are the cause of audio problems.
- The board in the head unit itself has some visible acid staining, causing me to assume leaky capacitors/typical signs of HU failure.
- Am cheap, recognize Willman's mod is objectively superior, but I really only want bluetooth with the ability to control volume and turn on/off, and I don't need or would even be able to use the Apple Carplay/Android Auto/Siri/the rest of the cool stuff that would bring.
- From what I understand, the GROM unit many others have used to add BT won't help here, since it still relies on the head unit being in working order to pass the BT signal to the amps/speakers (though please correct me if this isn't the case).
- Found this thread for DIY aux-in: http://www.nsxprime.com/forum/showthread.php/182373-DIY-Aux-in-no-head-unit-the-easiest-way I'm not great with electronics, but I understand why it would work. Want to basically do this, but instead of plugging it into a phone, plug it into a BT receiver unit for fewer wires.
Plan:
- Use the SoS harness (https://www.scienceofspeed.com/inde...eed-proformance-harness-adapters-for-nsx.html; aftermarket stereo - factory amp/speakers).
- Use one of these two bluetooth receiver/controller units:
- Solder power wire for the unit to the red/ignition wire from the SoS harness; goal is to only have power sent to the BT control when key is in ACC or IGN position, not the yellow/orange/+12v constant ("duh," but I'm bad at this, please bear with me :smile
.
- Splice the ground wire from the unit into ground on the harness and attach to ground or attach both ground wires to ground on car ("duh," but I'm bad at this, please bear with me :smile.
- Split BT unit's RCA-out to left and right to match the four receiving units on the harness via two RCA splitters as described in the above DIY guide.
- Once wired up, remove "guts" of stock head unit and mount the new contraption in the now-empty box, maintaining clean console look and retaining ability to go back to stock.
I *think* this makes sense as long as I can figure out a mounting point for the control unit after the wiring is done, but would greatly appreciate input from someone with more expertise on whether or not I'll short something and flambe my console/entire car. I don't think this setup would run the risk of causing electrical problems, but that's based on the assumption that there isn't much/any risk of swapping out the old recipient of the 12v power line (the stock, dying head unit) with a new recipient (the BT receiver and control dongle), since I'm replacing rather than adding.
Thanks in advance!
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