How to prepare the head unit

[jcthelight1976]

I have a few questions so disconnect everything from the amps I have two of them a one channel for the subwoofer and a 4-channel for my door speakers. Then you disconnect the speaker wires then set your head unit to your desired settings like for EQ and for your Crossovers and all that and the subwoofer level in the head unit to your desired settings? Then hook up the DD1 to the RCA outputs on your head unit 1 at a time? (4 for the 4 channel amp 1 for the channel amp) (5 channels total) And then  set your volume just below Distortion level for each RCA jack 4 of them for the four channel amp and one for the one channel amp then plug your RCA's in to your one channel amp for your subwoofer then hook the probes up to the negative and positive speaker wires and then adjust the gain until the Distortion light comes on and then back it off until it goes away what about the four channel amp I have two gain knobs and two amps built into that 4-channel amp do I need to test all four speaker outputs or just one for each amp and each gain knob?

[jcthelight1976]

So I figured out what I got to do the instructions that this tool comes with says to set your equalizer to flat and your crossovers to flat so I did some Googling on the Crossovers because I don't have a setting for flat all I can do is turn them up turn them down or turn them off so I Googled how to make your crossovers flat and it said to turn them off they should have said that in the instructions instead of saying flat because newbies won't be able to understand the terminology but I got it working the leads broke the positive lead pulled out of the RCA jack like everything that I Googled about them said it would happen so I got new ones coming thanks Steve Meads designs you taught me how to tune my amps and my head unit thank you

Edited March 26 by jcthelight1976