Rear parking sensors for '04 Accord

[Alpine]

We have an '04 Accord V6 Luxury which did not come standard with rear parking sensors, and it seems the '05 or '06 (whichever it was) made it a standard item.

Does Honda sell this as an accessory which can be purchased and fitted to our Accord? Or would perhaps going aftermarket be a cheaper and better option?

[PrahVtec]

definitely go aftermarket if u want cheaper option

jus an idea it costs 680 to fit em on a 07 accord at honda