run the patch rca cable from the 500/1 output to the "FRONT INPUTS" on the 300/4

set the input channels to 2
set the voltage level to 'LOW"



now run the speaker outputs from the front (of the 300/4) to the HU, cut the wires going to the front speakers and patch the speaker wires from the amp to the wires going to the front speakers

run the speaker output from the rear outputs (of the 300/4) and run them to the rear speakers.

Adjust the gains and crossovers on the front and rear of the 300/4 till everything sounds perfect.

You are now done.

tuning tip, adjust the gains down in the rear so more sound comes from the front speakers to give a better sound stage.

Any questions feel free to ask here or PM me.

Have fun

 

I plan on doing that for the sub and rear speakers. But I was still going to keep the fronts separate to keep front to back fade possible. Likely won't ever used it, but still have the option.

 

well you can but if you set the gains correctly on the 300/4 there is no need for the fader on the HU.

I have set-up many many systems in my 38 years (not sure how old that makes me in Tech years) - once you set it, you can forget it (that is how I do it)

 

I'll try it with just the rear speaker. I'll run new wires to the doors so I won't have to get behind the HU. I'm just out of practice with this stuff because I thought of that after the fact. I just need to adjust the amps right. Thanks.

 

don't do what you are suggesting. never mix up left and right signals - you need to maintain your balance at all times. you don't use balance but you NEED left and right stereo separation. you would have left channel front and right channel rear - which would sound terrible and defeat the purpose of upgrading the stereo completely. front/rear fader you can give up, if you wish.

if it were me, i'd run wire from the HU back to the amps and use both front and rear speaker wires as inputs. i'd want my front speakers and subs on the front HU output, and rear speakers on the rear output. that way i can fade to front to attenuate rear speakers, and still have balance. you want more sound from the front than the rear anyway.

with this, you'd have high level inputs on the 300/4 (4ch input) both front and rear, and a patch cable to the 500/1 with low level input selected.

i like having level control at my fingertips. Crispin's method using the high level on the 500/1 works just fine - but you lose any fader control at the HU. you can still balance front/rear levels at the amps.


running wire is part of doing an install - you cannot shy away from it. wiring, in general, is the most vital part of the installation and should receive the most effort.