try survey brather...banyak pilihan...cuba cari kat zth, mhccgroup, motor trader, autoworld...and jalan jalan second hand dealer...kena rajin la kalo nak cari yg best n murah...hahaha...i nye eg6, so tak leh pun nak juel...hehehe...gud luck
just did some did and tested my DIY VS using 12v batt. everthing is o.k, LED indicator light off when charging and on when fully charged. when removed the power supply (12V battery), the LED remain on... let the VS charged overnight to further...