Just a question regarding upgrading the 17cm speakers in both the front and the back of my MK4 Astra Hatch.
The car came with a sony HU and wiring for an amp/sub, which I was very grateful for ... so I installed the 500W RMS Diamond Audio 12" sub, with a JBL GTO12001 amp powering it (yes, amp is way more powerful but it allows me to shove in a 2nd identical sub when the funds allow). Never had a sub before, but this one is loud as hell, well, it was when I got it, it just sounds normal now.
Basically i'm now wanting to upgrade the standard speakers, and, like the rest, going for comps rather than coax. Basically i'm looking at spending around £300 to upgrade all 4 speakers along with an amp (if neccessary), not interested in 6x9s in the parcel shelf.
Am I right in saying the front speakers are 17cm and the rears are also 17cm? Or are they 13cm? (MK4 52reg 3DR Astra hatchback)
How easy are they to wire up? What wiring kit would you recommend? I already have an amp in the boot which uses a 4gauge wiring kit, would I need a new line to the boot or can I just jump that one? If so, how?