I picked up a new eBay Android head unit to replace an older one. It only has 2x RCA amp outputs, and my old one had 4. I have a 4 channel amp. I looked at the head unit's connector for the RCA harness & there are 7 unused pins. Just curious if anyone has an RCA harness pinout for this model? I would like to connect my old rear RCA outputs to this if possible. The vendor is closed on the weekend, so I thought I'd ask here. I did not see this info in other K2401P threads, so I'm posting new...Read more