Astro Spectra as tx radio for repeater

[hacknewz]

Hello im wondering if anyone can help me im looking for a way to use an astro spectra a tx radio for a repeater I have one laying around and its needed for a temporary transmitter. Need a little help with how to pass pl audio from a tone panel through this unit if possible without tearing it apart and soldering to a point on the board. Its a high power remote mount radio.If anyone can lead me in the right direction would be awesome and greatly appreciated thank in advance.