any help / input for an old man, changing out stock radio on 2008 SG, and trying to spend around $600.00 to $700.00 for upgrade if that will get me started. Removing air temp gauge and volt gauge for horns and upgrading 5" to what ever is best today, (that probably changes daily). Any input on this upgrade for me would be greatly appreciated, just a low tech red neck here, but certainly wanting better audio as we all do I guess. thanks in advance,