if its just for a regular mazda 3, then i can help, but i dont have pix, i aint gots a camera yo!
BUT i can tell you step by step day by day and i dont know the rest...anyway back on tracklook at the shiny plastic piece that goes from the LCD screen with the temp/time and what not? open the glove box and follow that plastic piece. search for a groove and begin to remove it carefully. this will reveal the screws holding your stock HU(i believe its the inner 2 screws) unscrew them and voila you have removed your HU. oh and carefully remove the HU and DC the wires
im going to
Can anyone define a bandwidth box to me and the significant differences(pros v. cons) of the 3 types of boxes(ported, sealed, bandwidth)