Once you listen to a decent instal the oem system really does sound like an amplified duck drowning and farting under water.
Octets system has made me realise EXACTLY how sh1t oem really is.
I've heard many installs from the simple changing of speakers, to adding a sub and then choosing quality products to replace the entire system. Really oem is good for nowt once you hear the difference, even just changing the paper speakers is enough to see the difference.
Couldn't agree more, I've only changed the HU and speakers, the difference is amazing, you'll have to have a listen one day Ian