If you just want to install you'll need to do that with the av systems. There is 1 25pin connector on the back of the unit. It needs to be soldered and sealed. I haven't seen anyone that "pots" the intercom box itself to keep all moisture out but for people on a budget it can be done for under $10.Originally Posted by Havasu Cig
All these guys are using av systems, well at least the guys whose units have volume, squelch and the isolate switch between the two knobs.