Does this seem like it would work?
Instead of buying
a new radio
+ the remote
control($$$), I am trying to setup a less expensive solution with remote
mic, and a dialpad for selecting channels.
On ebay, I found another exact model vhf
radio(5$), and I want to take the mike and a frequency selector dialpad from that one and add it to the radio
in the navstation. My dialpad is like a dialpad on the phone
with numbers '0'-'9' and an 'enter' button.
I'll plan to keep the controls like hi/low, volume, power, international/USA, and squelch on the main radio. I will just solder the wires for the second dialpad frequency selector in parallel to the dialpad on the main radio. Also add another mike cable in parallel to the mike on the main radio. These old radios are nice and big, and soldering components is relatively easy in comparison to the newer electronics