Holden Statesman 2003 - 2006 WK, WL
A revised WK series was launched in May 2003, with a facelift. The curvaceous front and rear end styling of the WH was abandoned in favour of angular lines, starting with the headlights borrowed from the VY Calais. From the rear, the redesigned taillights were now separated by sheet metal, rather than being joined with a horizontal strip of plastic.[30] The redesign had the after effect of lowering the WK's drag coefficient to 0.30.[31] Other changes came in the form of revised bumpers, wheel trims, with the interior dashboard and centre console receiving a major overhaul. Powertrains carried over from the previous model, but the Generation III V8 engine was now rated at 235 kilowatts (315 hp) for the Statesman and 245 kilowatts (329 hp) for the Caprice.
https://en.wikipedia.org/wiki/Holden_Caprice
Wiring Information
1: The amp in the Holden WK and WL (2003 - 2006) Statesman and Caprice fitted with the Blaupunkt Premium sound system cannot be retained. Our parts list will work with these vehicles but the amp must be bypassed and a mono or small 2 ch. amp added to retain the subs.
2: As the antenna up/down switches are located on the OEM unit, it;s advised that the antenna be fully extended (to a desired height) before the OEM unit is removed to allow the after market unit to operate the antenna as a fully automatic