Need help with HU pre-outs

[Camp Badger]

I installed a Pioneer DEH-1300 aftermarket head unit in my car with two RCA amplifier pre-outs. I hooked up an old dvd player with an integrated 6 channel amp and wired the rca outputs on the HU to the rca inputs on the dvd player but I don't get any sound out of the speakers wired to the dvd player, even when I max the dvd players volume. However, the dvd player works fine when it's hooked up to the tv or some other audio source and a regular subwoofer amplifier works fine when hooked up to the pre-outs on the HU.

I just can't figure out why it won't work how I want it to. Any help/suggestions would be greatly appreciated!

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[keep_hope_alive Premium Member]

to summarize:

you verified that the inputs on your DVD/amp work using other sources,

and you verified that the RCA outputs work with an amp.

but when you try to feed the RCA output into the DVD/amp you get nothing.

somehow, are the HU outputs ran through a low pass filter for subs? i haven't read the owner's manual yet. maybe you can set the preouts for subwoofers, which provides a LPF?

 

[Camp Badger]

here is the manual Pioneer High power CD player with FM/AM tuner Operation Manual for the DEH-1300 | ManualsOnline

I am unsure about the low pass filter

 

[Camp Badger]

never mind, I hooked it all up again today and it worked so idk what the problem was