I have a GNC300XL that ALL I use it for is my Com2 and it is literally falling part. Knobs broken, label and buttons worn off...time to retire it. Want to replace it with a basic com 2 radio. Have GNS430 for Com 1 and GMA340 Com Panel. Don't need fancy nor want to spend more than I have to, just need functionality. Any recommendations that will not break the bank?