Upgrade from 150W audio system to 300W audio system manually

[westhill09]

Hello everyone!

First, I'm noob on this forum and I would like to thank creators/developers of this website idea!

I own a 9-3 Valkommen edition MY10. It has the OEM 150W audio system with OEM head unit (6 CDs changer version).
I'm rather happy of this audio system version but I would like to upgrade my OEM install to the 300W prestige audio system. But not the Bose version (seems to be too difficult to install manually), I talk about the version which was installed on 9-3 convertible body version (from 2007 to 2012) with 2 dash speakers and 1 subwoofer (10 speakers in total).

first question: is it possible to do this on a 9-3 Sedan MY10? (installing sub in trunk for example)
second question: if yes, where can I buy the second amp and wires (optical and normal wires)? (don't panic with OEM speakers, I prefer buy aftermarket speakers)
finally, third question: if somebody has already done this type of operation? (if it's the case please supply me the post link in order to avoid repetition)

Thank you for your help Saab owners!

[9-3 Aero]

Welcome to the Saab World

First of all, take a look at this link to get an idea what it's all about: "Saab 9-3 Audio, Navigation and Telematics (2007-2012)": http://saabworld.net/f146/saab-9-3-a...-2012-a-26948/.