RCA Wire Routing

[CheepComanche]

I'm currently working on installing a bass tube and I'm having trouble routing the rca lines behind the dash to the head unit. I have the wires coming up to the dash from the passenger side. The problem I'm having is that there doesn't seem to be enough space behind the dash to add any more wires going up to the head unit. Any Ideas?

[Drahcir495]

It's really tight back there but I got it to work. Here's what I did. Undo a coat hanger to fish it through. Once you have it fed through, just tape the RCA cables to the end and carefully pull it back up. Be sure to make sure you leave extra cable behind it.