I'm somewhat new to Ratsun and have been browsing for a while and have noticed a lot of talk about the radio delete plates on the "What did you do to your 620 today?" and am curious if people are just replacing their old ones or are removing their radios? Also, are decent quality factory radios in demand? I'm sure there is something about factory 620 radios out there but i have yet to find it so any input would be appreciated, Thanks in advance!