anyone have good luck with soldering back reciever wires that had been cut? i know they are tiny and demand careful handling. Didnt know if this causes any issues with radio to vehicle issues?

The only receivers that are really picky about antennae are 2.4GHz, especially those using coaxial wire. At lower frequencies, you will be fine splicing the old antenna or using a wire of similar gauge to replace it. Make the total length within a few percent of what it was, and you'll be fine.