Crutchfield's has a 6 x 9 box for $30.00, the QLogic QL-69W that has a 7 inch base. I am considering the Sony XS-V6950 H 6x9 speakers (4 way) from etronics. Undecided on front speakers.
Also want to update my radio, have the original Becker Grand Prix. Would like to keep it German but the Pioneer DEH-P 4600MP has a lot more going for it at the price ($180) than a comparable Blauplunkt.