Bridging factory HU

tswei · #1 11-08-2005, 09:56 AM

I asssume that all the OEM HUs are the same and provide 4 speaker high level outputs. Anyone know if these can be bridged??

I've got a reg cab so am only using two spekaers and would like to upgrade the power and the spekaers but keep the factory HU.

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Bartak1 · #2 11-10-2005, 02:30 PM

No.

If you want to up the power, but keep the factory HU, you can use an amplifier and LOC to convert the signal.

worland · #3 11-11-2005, 05:17 PM

Check and see if your HU has FADE control. If so, it'll have two (front & rear) channels.

You can bridge the output. The only obstacle is that the factory wiring harness probably does not have wires/pins going to the rear channel on the HU.

Back in the 70's & 80's, we'd just solder a "run" between the channels on the HU connector to bridge them. No need to run an amp... you'll get the extra power you were looking for.

frostby · #4 11-11-2005, 06:16 PM

I'd be a little hesitant to bridge it as well, I can't speak from experience here, nor would I have the funds to attempt it but... Aftermarket decks are not made to be bridged - except pioneer(rear outputs) for a small sub, why would a factory deck be any different?

I get the impression worland is "combining" outputs, + to + and - to -, I don't know, I don't really follow his description. Then again, 70's and some 80's cars were frequently Common ground - and thats a whole different story.