Originally Posted by mj1993

Hey guys. I tried the old relay trick on my AVH-X5600BHS with no luck. At first it seemed to work, but after a day of frustration, I finally gave up and called my buddy. He said he got his installed at a local shop that used a bypass from www.diybypass.com. I already had completed my install so I just went and ordered it from amazon and it works amazing! I see people bring this up all of the time here so I just wanted to recommend it so that people don't waste their time with the relay. Here's the info for the item that I bought.
Amazon.com: Genuine DIYBypass for All AVH Pioneer - Double Pulse - Parking Brake Bypass Video in Motion for AVH-X1600DVD AVH-X2600BT AVH-X3600BHS AVH-X4600BT AVH-X5600BHS AVH-X1500DVD AVH-X2500BT AVH-X3500BHS AVH-X4500BT AVH-X5500BHS AVH-X6500DVD AVH-X7500BT AVH-X8500BHS AVH-P8400BH APPRADIO 2 APPRADIO 3 SPH-DA100 SPH-DA110 SPH-DA210 AVH-4000NEX - Doesn't require programming like PAC TR7: Car Electronics

Parking Brake Bypass Pioneer AVH-X1600DVD AVH-X2600BT AVH-X3600BHS AVH-X4600BT AVH-X5600BHS - YouTube