I have a 05 g35 coupe. Im having some issues with my electrical system and Ive had my car for 2 months now. Do these cars have common electrical issues?

 

Relevant to this forum, yes, the radios have a very high failure rate. Other areas of the electrical system should be asked about in the appropriate tech forums - lighting, engine, or general tech.

 

Is there somewhere to post to cover the question in general instead of posting the same question in mutiple sections?
and with the radio everytime I turn it on I need to turn the treble and base down 1 and then up 1 for the sound to come out clear. Any fix or is my radio taking a dump?

 

Yes, there's links to the forums I named on the front page of the forum.

It sounds like your radio is going, but luckily it sounds like you have one that you can keep using while you save up for a replacement. When you feel like taking the plunge into a new radio, check out this post here: https://g35driver.com/forums/audio-video-electronics/333847-wrathernaut-s-double-din-installation-faq-shopping-resource-list.html for the details on the swap.