Okie got it fixed
http://wordpress.stackexchange.com/questions/3507/custom-field-values-in-permalink/3517#3517
<?php
global $post;
$terms = wp_get_post_terms( $post->ID, 'product_cat' );
foreach ( $terms as $term ) $categories[] = $term->slug;
if ( in_array( 'audio', $categories ) ) {
echo 'In audio';
woocommerce_get_template_part( 'content', 'single-product' );
} elseif ( in_array( 'elektro', $categories ) ) {
echo 'In elektro';
woocommerce_get_template_part( 'content', 'single-product' );
} else {
echo 'some blabla';
} ?>