[TouringLegend95]

Hi,

When splicing RCA connectors to the factory speaker level outputs from the factory stereo to plug into an afermarket amp (bypassing Bose amp), what is the polarity of the RCA connector. I would assume the outer part of the RCA is (-) and the inner part is (+), is that correct?

 

[Guest]

there is just one RCA connector?? Normaily I would think there are 2.... one for positive and one for negative?

 

[TouringLegend95]

Yes, the center is the positive.

Thanks. I thought so, but I needed a sanity check on this one so as to not take any chances.

 

[TouringLegend95]

there is just one RCA connector?? Normaily I would think there are 2.... one for positive and one for negative?

Four channel amps have four seperate RCA input connections, with a total of 8 wires. Each RCA connector has two wires, one positive and one negative. It's important for sound quality and equipment protection to get the polarity correct.

 

[Guest]

Four channel amps have four seperate RCA input connections, with a total of 8 wires. Each RCA connector has two wires, one positive and one negative. It's important for sound quality and equipment protection to get the polarity correct.

I did not know that... thanks

 

[GSteg]

???


the preouts are AC

 

[firepac493]

Stop!!!

You need a line level adapter.... The stock radio puts out way too much power for the pre amp inputs on your after market amp. Buy a good one should run you around $40.00.

 

[TouringLegend95]

You need a line level adapter.... The stock radio puts out way too much power for the pre amp inputs on your after market amp. Buy a good one should run you around $40.00.

NOT.

You are right, with most amps, but not the one I bought.
I have a Polk Audio MOMO amp, with line level adjust for low or high level input, and that is a cool feature, especially for a kick ass high power 4 channel amp. Thus, that is why I needed to verify the polarity of the RCA jacks, so I could splice the RCA connectors to the factory line outs directly from the HU wire harness speaker outs with the correct polarity.

I just finished wiring my amp inputs, outputs and mounted my new speakers, massive Polk MMC690 speakers on the rear deck, and DB6750 comps in the front door. The only thing I have left is to figure out where I am going to route the 4 gauge red cable to the battery, are there any good holes pre-existing in the firewall, or do I drill?

 

[TouringLegend95]

I found the simplest route was to drill. Others have gone to great lengths to run the wire in without drilling, including removing the driver's side fender, but it's a lot more work. I came in right above the deadpedal.

Good, I was looking at that spot too, I don't think there are any hidden wire harness or other potential problems there.

 

[Cees-Jan]

The original wire harnas goes trough the metal to the engine compartment, this is oem done with a rubber, this is quit big, I always use a copper 3 mm wire (the stiff kind) to push trough the rubber, tape the red + wire to it and pull it trough. No drilling, water and sound tight, almost OEM......

There are many carradios where the negative speaker connection is NOT connected to battery negative, if you do this by connecting them with the RCA connecters on the separate amplifier you will destroy the carradio in 0,0001 seconds........