VW Transporter T4 Dash Speaker Upgrade 1990 - 2003 JVC 4" 10cm 420watts. Poly-Ether Imide Balanced Tweeter. Neodymium magnet (the tweeter). Mica Cone Woofer. Ferrite Magnet (Woofer). JVC CS-J420X. We may be able to resolve the problem on the phone or give you advice on the appropriate action to take.
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