Does anybody have any suggestions about a new plug and play head unit? Wife has worn out two factory units in the last eight years. She mostly listens to the XM player, but still uses cd's occasionally. Ideally the new one should have bluetooth phone capabilities, so she could get rid of the external one. Navigation is not needed. I'm thinking this would make an excellent Christmas present. I can do internet searches all night long, btu would prefer to hear from some that have actually done it, what they bought, what features it has, and if you had to do it again would you. Thanks.