That add lists $26.79 Standard Shipping. Not sure what the shipping is from Wal-Mart, but it's free pickup and Walmart is everywhere....
1998 BMW 540i
Headunit: Stock DSP; Hifonics MX-1
Front Stage: Cerwin Vega 5.25's
Rear Stage: OEM 5.25's
Sub: RE Audio SX 10.4
Amps: Rockford 400.4 & bd1000