Mega audio upgrade -- sound deadening, speakers, stealthbox sub, GMRS radio

[jorosz0309]

Well, the JL TW3 didn’t fit in the Aussie stealth box either. The frame wouldn’t fit through the opening and the mounting bracket was too big for that cutout too. Wasn’t even close. Terribly frustrating. So I made my own box. The clearance is very tight, but I think it’ll work. Got the amp and the wiring done too. All that’s left is painting the sub box, connecting power/ground and tuning.

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[jorosz0309]

When you all disconnected your negative battery terminal and reattached it, did you have any problems? I had my negative disconnected for a few minutes so I could attach my amp power cable to the positive terminal. Then when I re-connected the negative, it gives me about a dozen alerts and won't start. Full power / accessory mode, but won't even try to turn over. Says service engine soon. Any ideas?

 

[nate.co]

When you all disconnected your negative battery terminal and reattached it, did you have any problems? I had my negative disconnected for a few minutes so I could attach my amp power cable to the positive terminal. Then when I re-connected the negative, it gives me about a dozen alerts and won't start. Full power / accessory mode, but won't even try to turn over. Says service engine soon. Any ideas?

No -- I don't remember getting any kind of alerts etc. Worst that happened was it forgot some settings in the entertainment system.

A previous car I had (Audi) would show a ton of alerts about airbags, suspension and everything, but it did start and after running for a minute everything calmed down.

I don't have much info to go on, that does sound strange! Might check fuses to see if anything shorted? Otherwise maybe if you have an OBDII scanner (like an ELM327 adapter and the Torque app on your phone) you could scan for ECU codes.

 

[hand-filer]

When you all disconnected your negative battery terminal and reattached it, did you have any problems? I had my negative disconnected for a few minutes so I could attach my amp power cable to the positive terminal. Then when I re-connected the negative, it gives me about a dozen alerts and won't start. Full power / accessory mode, but won't even try to turn over. Says service engine soon. Any ideas?

I don't disconnect the battery. I wire everything up but leave the fuse(s) out of the fuse holder(s). Before I plug the fuse(s) in, I test the cold side of the fuse holder with a multimeter to make sure nothing is shorted to ground.
I've never had any issues doing it this way.
I started my installation tonight:
Hertz MPS 250 S2 shallow subwoofer
Hertz DIECI POWER DP 1.500 Mono Class-D compact car audio amplifier
Ford Ranger Sub Box

 

[jorosz0309]

I watched a YouTube video about how to reset the Battery Monitor Sensor (accessory on, flash high beams 5x, step on brake 3x, place fob in programming slot, start) and it started right up. I hate that cars are so complicated now that you can’t simply disconnect the battery without fear of being stranded. Oh well, figured it out with the help of youtube, and didn’t have to tow it to the dealer….but yeah now I wish I had not disconnected the battery and just worked without the fuse in.

 

[jorosz0309]

Even with this amp being as small as it is, I still had some contact with the back of the seat, which I didn’t like for a heat-producing element. So despite all the work I put into wiring behind the seat, I moved it down to the other storage cubby. Now just waiting on an Amazon 4-pin Molex connector extension as the one from Sounds Good Stereo isn’t long enough to reach the new location. All things considered, turned out ok for something that sits beneath a seat

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