Can I make a request of this application?

I have noticed that when I receive a call the PM transmitter is switched off and when the call ends it is switched back on again. I suspect that this app does not actually do this, but I have noticed that when my transmitted is switched back on the power level is not 113 and no longer 118. Is there any way this app can detect the FM transmitter being switched back on and reapply the 118 power setting?

It is getting real annoying every time having to exit out of sygic and switch the transmitter off then back on again every time I get a call!

Thanks